Marine Mechanical Engineer II

Marine Mechanical Engineer Level 2

Business unit:

Gibbs & Cox, as part of the Maritime Surface Division at Leidos has an opening for a mid level Marine Mechanical Engineer at all locations

Position summary: Leidos Gibbs & Cox is seeking a Marine Mechanical Engineer Level 2 to support the design, analysis, and integration of marine mechanical systems for naval and maritime platforms. This mid-level role is suited for an engineer with experience applying technical knowledge, strong analytical skills, and interest in supporting ship design, system development, and lifecycle engineering efforts.

Primary responsibilities:

• Works independently (with moderate supervision), or on project teams
• Performs calculations applying mechanical engineering principles, procedures, and criteria.
• Develops analyses and prepares technical reports and other engineering documentation.
• Develops ship propulsion and auxiliary system calculations and designs and prepares technical purchase specifications for major equipment.
• Supports engineering activities for systems that may include main and auxiliary propulsion, fuel systems, lubrication systems, seawater and freshwater systems, and heating, ventilating, and air conditioning systems

Basic qualifications:

• Bachelor’s degree or equivalent education in Marine Engineering or Mechanical Engineering and 2+ years of relevant experience.
• Functional understanding of mechanical systems, thermodynamics, fluid systems, or shipboard systems
• Strong written and verbal communication skills
• Ability to work effectively in a team environment
• Proficiency with CAD and Microsoft Office applications
• Must be able to obtain a security clearance.

Preferred qualifications:

• Career experience in marine, naval, or defense engineering
• +3 Years of experience with ship design, piping, HVAC, propulsion support, or auxiliary mechanical systems
• Professional Engineering or Engineer in Training certification in Marine Engineering, Mechanical Engineering, or another applicable discipline.
• Proficiency in using industry-standard computer aided design, engineering analysis software tools, and Microsoft Office applications.
• Exposure to U.S. Navy, shipbuilding, or maritime industry standards

Work environment: This role supports Leidos Gibbs & Cox engineering work in a collaborative environment focused on maritime and defense solutions.

Some travel to support specific customers and contracts should be expected, approximately 10%. Local to one of the main offices is desirable, however not required. Main offices are located in New York, Philadelphia, Arlington, Newport News, and New Orleans. Open to flexible working arrangements after experience.

Company description: Leidos Gibbs & Cox delivers engineering, design, and maritime solutions in support of critical customer missions. As part of Leidos, Gibbs & Cox combines deep domain knowledge with broader enterprise capabilities to support innovation across defense and national security programs

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

September 16, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $69,550.00 - $125,725.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.